* using log directory ‘/srv/hornik/tmp/CRAN_pretest/OPCreg.Rcheck’
* using R Under development (unstable) (2025-02-24 r87805)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    Debian clang version 19.1.7 (1+b1)
    Debian flang-new version 19.1.7 (1+b1)
* running under: Debian GNU/Linux trixie/sid
* using session charset: UTF-8
* checking for file ‘OPCreg/DESCRIPTION’ ... OK
* this is package ‘OPCreg’ version ‘0.1.0’
* checking CRAN incoming feasibility ... [3s/3s] NOTE
Maintainer: ‘Guangbao Guo <ggb11111111@163.com>’

New submission

License components with restrictions and base license permitting such:
  MIT + file LICENSE

Possibly misspelled words in DESCRIPTION:
  Guo (9:142)

No package encoding and non-ASCII characters in the following R files:
  R/IPCR.R
    25: Xcenter<-t(X[i,])                        # x<a1><af>= x
    30: gamma<-as.numeric(t(h/hmao)%*%t(Xcenter))            #<a6><c7>= Tx<a1><af>
    33: eig2<-eigen(H)     # H<a6><ab>k +1HT  = 
    34: lambda<-eig2$values[1:m]              #<a6><ab>k +1
  R/PCR.R
    29: xsd<-(diag(cov(data1[,2:(p+1)]))^(1/2))      #sii    for i=1,2,<a1><ad>,p
  R/PPCR.R
    31:     Xcenter <- t(X[i,])  # x<a1><af>= x
    36:     gamma <- as.numeric(t(h / hmao) %*% t(Xcenter))  # <a6><c7>= Tx<a1><af>
    44:     eig2 <- eigen(H)  # H<a6><ab>k +1HT  = 
    45:     lambda <- eig2$values[1:m]  # <a6><ab>k +1
  R/SPCR.R
    19:   eig1 <- eigen(cov(X[1:n0,]))  # S = V<a6><ab>VT
    20:   lambda <- diag(eig1$values)  # <a6><ab>= (<a6><cb>1, ..., <a6><cb>m)
* checking package namespace information ... OK
* checking package dependencies ... OK
* checking if this is a source package ... OK
* checking if there is a namespace ... OK
* checking for executable files ... OK
* checking for hidden files and directories ... OK
* checking for portable file names ... OK
* checking for sufficient/correct file permissions ... OK
* checking whether package ‘OPCreg’ can be installed ... [1s/1s] OK
* checking package directory ... OK
* checking for future file timestamps ... OK
* checking DESCRIPTION meta-information ... WARNING
Invalid license file pointers: LICENSE
Dependence on R version ‘4.4.2’ not with patchlevel 0
* checking top-level files ... OK
* checking for left-over files ... OK
* checking index information ... OK
* checking package subdirectories ... OK
* checking code files for non-ASCII characters ... OK
* checking R files for syntax errors ... OK
* checking whether the package can be loaded ... [0s/0s] OK
* checking whether the package can be loaded with stated dependencies ... [0s/0s] OK
* checking whether the package can be unloaded cleanly ... [0s/0s] OK
* checking whether the namespace can be loaded with stated dependencies ... [0s/0s] OK
* checking whether the namespace can be unloaded cleanly ... [0s/0s] OK
* checking loading without being on the library search path ... [0s/0s] OK
* checking use of S3 registration ... OK
* checking dependencies in R code ... OK
* checking S3 generic/method consistency ... OK
* checking replacement functions ... OK
* checking foreign function calls ... OK
* checking R code for possible problems ... [2s/2s] OK
* checking Rd files ... [0s/0s] OK
* checking Rd metadata ... OK
* checking Rd line widths ... OK
* checking Rd cross-references ... OK
* checking for missing documentation entries ... OK
* checking for code/documentation mismatches ... WARNING
Codoc mismatches from Rd file 'IPCR.Rd':
IPCR
  Code: function(data, eta, m, alpha)
  Docs: function(data, m, eta, alpha)
  Mismatches in argument names:
    Position: 2 Code: eta Docs: m
    Position: 3 Code: m Docs: eta

* checking Rd \usage sections ... OK
* checking Rd contents ... OK
* checking for unstated dependencies in examples ... WARNING
'library' or 'require' call not declared from: ‘matrixcalc’
* checking examples ... [0s/0s] ERROR
Running examples in ‘OPCreg-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: IPCR
> ### Title: Incremental Principal Component Regression for Online Datasets
> ### Aliases: IPCR
> 
> ### ** Examples
> 
> set.seed(1234)
> library(MASS)
> library(matrixcalc)
Error in library(matrixcalc) : there is no package called ‘matrixcalc’
Execution halted
* checking PDF version of manual ... [2s/2s] OK
* checking HTML version of manual ... [0s/0s] OK
* checking for non-standard things in the check directory ... OK
* checking for detritus in the temp directory ... OK
* DONE
Status: 1 ERROR, 3 WARNINGs, 1 NOTE